import React, { Component } from 'react'
import PropTypes from 'prop-types'
import Item from '../Item'
import './index.css'

export default class index extends Component {
  // 对接收的props: 类型，必要性的限制
  static propTypes = {
    todos: PropTypes.array.isRequired,
    updateTodo: PropTypes.func.isRequired,
    deleteTodo: PropTypes.func.isRequired
  }
  render() {
    const {todos, updateTodo, deleteTodo} = this.props
    return (
      <ul className="todo-main">
        {todos.map(todo => {
          return <Item {...todo} key={todo.id} deleteTodo={deleteTodo} updateTodo={updateTodo}/>
        })}
      </ul>
      
    )
  }
}
